State of helium in irradiated beryllium

被引：0
|
作者：
V. M. Kosenkov
A. O. Posevin
P. P. Silantiev
机构：
来源：
Atomic Energy | 2012年 / 111卷
关键词：
Beryllium; Helium Atom; Neutron Fluence; Solid Substitution Solution; Frenkel Pair;
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摘要：
Experimental data are presented on the change of the pycnometric density and unit-cell volume of beryllium irradiated in an SM reactor to neutron fluence 14·1022 cm–2. The behavior of the unit-cell volume as a function of the neutron fluence is similar to the data for other metals. This and data on the volume change in beryllium oxide, where a large amount of gas is also formed during irradiation, make it possible to evaluate critically the assertion that helium forms a solid substitution solution. It is proposed that helium is confined in small accumulations.
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页码：260 / 264
页数：4
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